CASTDICE英単語帳 vs ViDic
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CASTDICE英単語帳
This app analyzes recent university entrance exam past papers using AI to compile a vocabulary list. Users can create custom English vocabulary books based on specific universities, departments, and time periods.
- AI analysis of past exam papers
- Customizable vocabulary lists
- University and department selection
- Time period filtering
- Vocabulary book creation
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CASTDICE単語帳は AI で直近10年間の大学入試の過去問を全て分析し、出現した単語を集計しました。分析対象の大学・学部・期間を指定して、それらに過去に出題された単語から英単語帳を作ることができます。
ViDic
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ViDic turns vocabulary learning into something you actually remember — because you learn with your eyes, not just your ears. Most people forget new words within a day. ViDic fixes that with a simple idea: pair every word with an image, and your memory does the rest. WHY ViDic WORKS • Image-first learning Every word comes with a picture that captures its meaning at a glance. No more translating in your head — you just see it and know it. • The 1-3-5 study method Backed by the forgetting curve, ViDic automatically brings words back to you on day 1, day 3, and day 5 — right when you're about to forget them. That's what makes new words stick for good. • Daily study words Every word you look up is organized by the day you learned it, so you can review exactly what you studied and when. • AI conversation tutor Practice speaking with an AI tutor that builds real conversations around the words you just learned — not flashcard drills, actual dialogue. • Image quiz Test yourself by matching words to images under a timer — a fast, fun way to check what's really sticking. • Your own wordbook Save words into folders, track what you've mastered and what still needs review, and build a personal vocabulary library over time. • Learn in your language Full support for 15 interface languages, so you can study any target language in the language you're most comfortable with. Whether you're studying for travel, work, an exam, or just for fun, ViDic makes vocabulary something you actually remember — not just something you looked up once. Download ViDic and start remembering with your eyes. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://crepoch.com/vidic_support/privacypolicy.html
Screenshots
Verdict
The clearest difference is price: ViDic at Free against CASTDICE英単語帳's $17.99. ViDic also leads on update cadence (every 3 days vs every 5 weeks). CASTDICE英単語帳's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
ViDic is free to download; CASTDICE英単語帳 costs $17.99 up front. ViDic sells 3 in-app purchases, starting at $5.99 per month. CASTDICE英単語帳 asks for nothing beyond the download.
CASTDICE英単語帳 ships an update every 5 weeks, ViDic every 3 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | CASTDICE英単語帳 | ViDic |
|---|---|---|
| Price | $17.99 | Free — better |
| Positive reviews | 85.0% of reviews | — |
| Update frequency | Every 5 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 116 MB | 182 MB |
| Age rating | 4+ | 4+ |
| Developer | CAST DICE, K.K. | WOOJIN BYUN |
In-app purchases
CASTDICE英単語帳
No in-app purchases
ViDic
- Premium Monthly$5.991 Month
- Premium Monthly14 Days trial$5.991 Month
- Premium Yearly$49.991 Year









